<template>
  <div class="goodsinfo-container">

      <transition 
      @before-enter="beforeEnter"
      @enter="enter"
      @after-enter="afterEnter"
      >
            <div class="ball" v-show="ballFlag" ref="ball"></div>
      </transition>


    <div class="mui-card">
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <swiper :lunbotuList="lunbotu" :isfull="false"></swiper>
        </div>
      </div>
    </div>



    <div class="mui-card">
      <div class="mui-card-header">{{goodsinfo.title}}</div>
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <p class="price">
              市场价:<del>￥{{goodsinfo.market_price}}</del>&nbsp;&nbsp;销售价:<span class="now-price">￥{{goodsinfo.sell_price}}</span>
          </p>
          <p class="shul">购买数量&nbsp;:&nbsp;<numbox @getcount="getselectedCount"
          :max="goodsinfo.stock_quantity"></numbox></p>
          <p>
              <mt-button type="primary" size="small">立即购买</mt-button>
              <mt-button type="danger" size="small" @click="addToshopCar">加入购物车</mt-button>
          </p>
        </div>
      </div>
    </div>



    <div class="mui-card">
      <div class="mui-card-header">商品参数</div>
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <p>商品货号 : {{goodsinfo.goods_no}}</p>
          <p>库存情况 : {{goodsinfo.stock_quantity}}件</p>
          <p>上架时间 : {{goodsinfo.add_time | dateFormat}}</p>
        </div>
      </div>
      <div class="mui-card-footer">
          <mt-button type="primary" size="large" plain @click="goDesc(id)">图文介绍</mt-button>
          <mt-button type="danger" size="large" plain @click="goCommment(id)">商品评论</mt-button>
      </div>
    </div>



  </div>
</template>

<script>
import swiper from '../subcomponents/Swiper.vue'
import numbox from '../subcomponents/goodsinfo_numbox.vue'
export default {
    data(){
        return{
            id:this.$route.params.id,
            lunbotu:[],
            goodsinfo:{},
            ballFlag:false,
            selectedCount:1
        }
    },
    created() {
        this.getLunBotu();
        this.getGoodsInfo()
    },
    methods:{
        getLunBotu(){
            this.$http.get('api/getthumimages/' + this.id).then(result => {
                if(result.body.status === 0){
                    result.body.message.forEach(item => {
                        item.img = item.src
                    });
                    this.lunbotu = result.body.message; 
                }
            })
        },
        getGoodsInfo(){
            this.$http.get('api/goods/getinfo/' + this.id).then(result =>{
                if(result.body.status === 0){
                    this.goodsinfo = result.body.message[0];
                }
            })
        },
        goDesc(id){
            this.$router.push({ name: "goodsdesc", params: {id} });
        },
        goCommment(id){
            this.$router.push({ name: "goodscomment", params: {id} });

        },
        addToshopCar(){
            this.ballFlag =!this.ballFlag
            var goodsinfo = { id : this.id , count : this.selectedCount ,
            price : this.goodsinfo.sell_price , selected: true
            }
            this.$store.commit("addToCar",goodsinfo)
        },
        beforeEnter(el){
            el.style.transform="translate(0,0)";
        },
        enter(el,done){
            el.offsetWidth;
            //获取小球在页面的位置
            const ballposition = this.$refs.ball.getBoundingClientRect();
            //获取徽标在页面的位置
            const badgeposition = document.getElementById('badge').getBoundingClientRect();
            const xDist = badgeposition.left - ballposition.left;
            const yDist = badgeposition.top - ballposition.top;

            el.style.transform = `translate(${xDist}px,${yDist}px)`;
            el.style.transition = 'all 0.5s cubic-bezier(.4,-0.3,1,.68)';
            done()
        },
        afterEnter(el){
            this.ballFlag = !this.ballFlag
        },
        getselectedCount(count){
            this.selectedCount = count;
            console.log(this.selectedCount)
        }
    },
    components:{
        swiper,
        numbox
    }
};
</script>


<style lang="scss" scoped>
.goodsinfo-container{
    background-color: #eee;
    overflow: hidden;
    .now-price{
        font-size: 15px;
        color: red;
        font-weight: bold;
    }
    .shul{
        font-size: 15px;
        display: flex;
        line-height: 35px;
    }
    .mui-card-footer{
        display: block;
        button{
            margin: 15px 0;
        }
    }
    .ball{
        width: 15px;
        height: 15px;
        border-radius: 50%;
        background-color: red;
        position: absolute;
        z-index: 99;
        top: 392px;
        left: 156px;
    }
}
</style>
